| Oxybaphus
nyctagineus or Mirabilis nyctaginea (Heartleaf Four-o`clock) |
Family:
|
Nyctaginaceae (Four-O'Clock) |
| Lowers leaves of Heartleaf
Four-o'clock are glabrous (hairless) and have petioles 1 cm long or longer.
Flowers of Heartleaf Four-o'clock drop their petals after a short period
of blooming. Plants are often seen with just the calyx remaining, as in
the last two photos. Compare to Hairy Four-o'clock (Mirabilis hirsuta) , which has pubescent leaves with no petioles. Stems of Hairy Four-o'clock are also pubescent. Some references suggest that M. hirsuta and M. nyctaginea might hybridize. Compare to Narrowleaf Four-o'clock (Mirabilis linearis), which has narrow, linear leaves. |
| Vegetation zone: | Plains |
| Time of bloom: | June - August |
| Origin: | Native |